You may remember Cardinal Burke's recent comments about circumstances under which Mass may undermine faith. He said (as related here by Voris): "If we err by thinking we are the center of the liturgy, the Mass will lead to a loss of faith." Cardinal Burke's remarks were apparently offered at a book launch on a new work entitled, How to Go to Mass and Not Lose Your Faith, so far available only in Italian.
Now it comes to our attention that a blogger has written a post, "Novus Ordo not just bad for your soul, but your body too!" (Introibo ad altare Dei, January 17, 2011), arguing that the mode of administering Communion under both species in Novus Ordo liturgies has let to the spread of Hepatitis A in New York: "Health officials say more people may have been exposed to hepatitis A while receiving communion at a Long Island church.... Health officials will return to the church on Friday, offering vaccines to anyone who may have been exposed."